linux-kernel - [PATCH] arm64: dts: mt7986: increase bl2 partition on NAND of Bananapi R3

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Message-ID: <ZH9UGF99RgzrHZ88@makrotopia.org>
Date:   Tue, 6 Jun 2023 16:43:20 +0100
From:   Daniel Golle <daniel@...rotopia.org>
To:     devicetree@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Frank Wunderlich <frank-w@...lic-files.de>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Weijie Gao <weijie.gao@...iatek.com>
Subject: [PATCH] arm64: dts: mt7986: increase bl2 partition on NAND of
 Bananapi R3

The bootrom burned into the MT7986 SoC will try multiple locations on
the SPI-NAND flash to load bl2 in case the bl2 image located at the the
previously attempted offset is corrupt.

Use 0x100000 instead of 0x80000 as partition size for bl2 on SPI-NAND,
allowing for up to four redundant copies of bl2 (typically sized a
bit less than 0x40000).

Fixes: 8e01fb15b8157 ("arm64: dts: mt7986: add Bananapi R3")
Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
 .../boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dtso     | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dtso b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dtso
index 15ee8c568f3c3..543c13385d6e3 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dtso
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dtso
@@ -29,13 +29,13 @@ partitions {
 
 					partition@0 {
 						label = "bl2";
-						reg = <0x0 0x80000>;
+						reg = <0x0 0x100000>;
 						read-only;
 					};
 
-					partition@...00 {
+					partition@...000 {
 						label = "reserved";
-						reg = <0x80000 0x300000>;
+						reg = <0x100000 0x280000>;
 					};
 
 					partition@...000 {
-- 
2.41.0